Microwave receiver system is the indispensable signal receiving equipment in radio astronomical observations.

微波接收机系统是射电天文观测不可或缺的信号接收设备。

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Microwave receiver system is the indispensable signal receiving equipment in radio astronomical observations.

微波接收机系统是射电天文观测不可或缺的信号接收设备。

youdao